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100-MEG glass disks. (Ideas And Trends) (column)
100-MEG GLASS DISKS
With mainframe streamer-tape cartridges exceeding 2 gigabytes and optical-disk technology cramming more than 500 megabytes on a five-inch platter, you might have thought the big leaps in data-storage capacity were behind us.
Not so. Komag Inc. (Milpitas, Calif.) working with Japan's Asahi Glass Co. to come up with disk material of glass that it claims to be lighter, thinner, yet more rigid than the aluminum currently used. Because glass can be formed into disks with very precise surfaces, higher recording-track densities are possible, yielding 80 megabytes per 5-1/4-inch disk. The new disks …
